Irrigation sprinkler



Jan. 10, 1928. 1,656,027

M. WEBER IRRIGATION SPRINKLER Filed Oct. 15, 1925 (L ofwel;

patented dah. l0, 1928.

MARTIN WEBER, OF LOS ANGELES, CALIFORNIA.

IRRIGATION SPRINKLER.

Application led ctober 16, 1925.

lhis invention relates to improvements in irrigation sprinklers. l

liln object ot the invention is to provide a aprinlrler which consists ot a standard on which a rotatable distributing head is mounted and which is provided with such a construction operable by the discharge ot water so as to produce an eatreinely slow rotational niovenient ot the distributing head on the llt standard, ln this inanner the water disn charged has a chance tosoali into the ground any one locality a considerable length ol tinie bentore an additional supply ot water is sprinlrled upon it.

lll/'ith the foregoing and other objects in view which will be inade inanitest in the tollowing detailed description and specilically pointed out in the appended claims, reference is had to the accompanying drawings for an w illustrative ernbodiinent ot the invention wherein z ligure 1 is a top plan View of the im proved sprinlrler,

llig 2 is a side elevation ot the sprinkler tu talren in the direction of the arrow 2 upon 1, parts being broken away and shown in vertical section, and

lig. 3 is a vertical section through the distributing head and showing the nianner au in which it is mounted upon the standard. ltetcrring to the accompanying drawings wherein siinilar reference characters designate siinilar parts throughout, the improved sprinlrler consists et a standard in the torni sa ot tripod orined ot a section of strap iron bent to provide a cross bar and two legs 1lm rlllhe third log of the tripod 'is formed ot' a section of metallic pipe 12 having an upstanding portion 13 secured to the crossau lar 10. Un the upper end of the upstanding portion 13 there is threaded a hollow stein la, the upper portion of which is eX ternally reduced to provide a shoulder 15. it housing or jaclret 1o is rotatably positioned au about the hollow stein 1e having its lower edge resting upon the shoulder 15. The top edges oit `the housing or jacket 16 and the hollow stein are substantially tlush with each other and have a washer 17 resting thereon. 'lhis washer' is preferably formed of an anti- ;triction substance such as Babbitt instal. A tubular ineinber 18 is threaded into the hollow stern 1&1 through the washer 17 and has an outwardly entending lilange 19 bearing on au the top oit the washer so as to maintain the Serial No. 62,863.

washer against the top of the hollow stein.

A distributing head 20 is threaded onto the jacket 16 so as to be rotatable therewith. This distributing head has an interior annu lar flange 21 projecting over the flange 19 for a purpose hereinafter to be described. The jacket has its central portion bulged out to provide an annular chamber 22 adapted to receive a water resistant lubricating coinposition which is supplied by nieans ot a grease cup 23. The distributing head 2O has a horizontally arranged nipple 241 and an upwardly inclined nipple 25. Upon the nipple 2d there is mounted a nozzle 26 which eirtends radially outwardly and preferably horizontally from the axis of rotation or the distributing head. Adjacent the outer end ot the nozzle 26 there is mounted an arin 2'? arranged at an angle to the nozzle. Un the outer end of the arin there is rotatably mounted a spindle 28, which is rotatable about a vertical aXis and which is lubricated by means of a grease cup 29.

On the upper end ot the spindle 28 there is provided a fan, generally designated by the reference character 30. This fan is formed of two circular discs ot sheet rnetal secured together side by side and which `are indicated at 31 and 32 respectively. rlhe upper disc 32 has radial incisions defining portions 33 which may be bent upwardly out of the plane of the disc 32, thus :torining blades adapted to be struck by the strealn issuing trein the nozzle 26 to produce rotation of the fan. A sinall sleeve 34; is threaded onto the lower end of the spindle 2d, so as to be rotatable with it. ln this sleeve there is formed a diainetvrical aperture adaptn ed to receive the rod 35 carrying a head or weight 3G. The rod 35 niay be adjusted with in the aperture in the sleeve and held in such adjusted position by ineans ot a set screw 37 locked in place by a loclr nut The rod 35 with the weight 36 provides a weight which is arranged eccentric to the axis of rotation of the `tan 3U and the spindle 28 for a purpose hereinafter to be described.

In the upwardly inclined nipple 25 there is secured a pipe section 39 which is arranged in an upwardly inclined manner, preferably at about deg. In the upper end ot this pipe section ther-c is rnounted a nozzle a0, and intermediate its top and bottoni there is r formed a second nozzle il. This second noz zle is preferably fornied of sonic bendable material, such as soft copper tubing, so that it may be readily bent into positions of various inclinations. The water is su plied to the pipe-12 lthrough a hose H which may be a conventional garden hose.

The operation of the device is as follows: lVater entering the pipe 12 from the hose H passes through the hollow stem 14. into the distributing head 20. In the distributing head it divides, part passing into the pipe section 39 and part into the nozzle 26. The part of the water which is dischargelfl through the nozzle 26 strikes the blades 33 and produces rotation of the ian, the spindle 28'` and the rod 35. yAs the rod 35 is employed to provide an eccentric weight upon the fan, it produces various re-actions upon the spindle 28. It wil'l be noted that when the rod is in the posit-ion shown in F ig.

f v1 and' also in Fig. 2, the center of gravity of the weight is most remote from the axis of rotation of the distributing head 20, whereas when the rod is inthe diametrically opposite position Ifrom that shown on the drawing, the center of gravity of the weight is most adjacent the center of rotation of the dis-A tributing head 20; Consequently, the reaction upon the spindle in rotating this eccentric Weight, when the rod is in the-position shown upon the drawing, slightly greater than the re-action upon the spindle. When the rod is in the diametrically opposite'position, so that the resultant force upon the s )indle is such that it will produce rotation o the distributing head 20 and the structure carried thereby in the direction o'le the arrow upon Fig. 1. This rotational f movementl of the distri'butinghead and the structure carried thereby is not steady, but` is a. slightly jerky motion, although it produces rotationvlo'f the distributing head continually in the samefdirection. i v

By this construction the distributing head will be caused to rotate very slowly so that the Water discharged upon a given locality has a chance lto vsink in before it is again' sprinkled. The stream ofwater issuing from the nozzle'26 not only rotates the fan 30, but is broken up and is distributed by the blades 33, so that-this water sprinkles and virrigates a circle of territoryvery adjacent the sprinkler. The lower disc 31 strengthens the upper disc` 32 and prevents any water from being deflected downwardly by the blades 33 and if any drops of water should tend to remain on this lower disc, they will be thrown therefromk by centrifugal action. In Vthis manner the ground immediately beneath. the orbit of the fan will not be overirrigated so as to become sloppy.

, By adjusting the rod. 35 by means of the set screw 37 so that, its center of gravity is quite remote from the vertical axis of the spindle 28, the speed of rotation of the distributing head can be increased, and con- Versely if the center of gravity of the rod 35 approaches the vertical axis olf the spindle 2S, the speed ot rotation ol the distributing head will decrease and approach zero. Furthermore, it the center of gravity o'f the rod 35 is in alignment with the axis ot the spindle 28, no rotation of the distributing head will be produced. lVhile the [ian is being rotated by the water issuing from the nozzle 2G to produce rotation of the distributing head, water also being` discharged through the nozzles 1() and l11. lhe nozzle 41 is employed to irrinnte the ground which is outside the circle ol: territory irrigated by the water discharged through the nozzle 26, and the upwardly inclined nozzle 40 serves to irrigate the ground most remote from the sprinkler which it is possible to irrigate.

The purpose of the fiange or shoulder Q1 is as follows: lVhen the water is turned off from the sprinkler, it frequently occurs that there is some grit or sand in the water in the distributing head. This sand tends to fall back down through the stem 14. The shoulder 21 causes it to be deposited centrally of the tubular member 1S which has its upper end slightly coned so that the sand or grit will be caused to fall within the hollow stem 14. It will be readily aplneciated that if this flange or shoulder 21 were omitted, the sand or grit could 'fall down adjacent the soft metal washer 17, so that when the water was again turned on, it would cut this washer, requiring its frequent replacement.

From the above it will be readily appreciated that an improved irrigation sprinkler is provided, in which the means ior rot-ating the rotatable part of the sprinkler consists of a radial nozzle 2G which discharges a stream which will produce the rotation of the eccentric weight adjacent its outer end, and that the re-actions produced by this rotation of the eccentric weight cause a jerky rotational movement which is very slow to be imparted to the rotatable part of the sprinkler.

It will be understood that various changes in the detail oi constriwion may be made without departing troni the spirit or scope of the invention as defined by the appended Claims. Y

I claim:

1. A sprinkler comprising a standard. a hollow distributing head rotatably mounted thereon, means providing a nozzle upon the distributing head adapted to discharge the stream radially outwardly `from the center otrotation of said head, an arm mourned upon the nozzle and arranged at an angle thereto, a tan rotatably mounted upon said arm about a substantially vertical axis and having blades adapted to be struck by the stream issuing from said nozzle to produce its rotation, means tor supplying fiuid to the Sli lun

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interior ot said distributing head, and means operable by rotation ot the fan to rotate said distributing head.

2. A sprinkler comprisingl a standard, a hollow distributing head rotatably mounted thereon, means providing' a nozzle upon the distributing head adapted to discharge a stream radially outwardly from the center ot rotation ot said head, an arm mounted upon the nozzle and arranged at an angle thereto, a. tan rotatably mounted upon said arin about an anis which is other than hori zontal having blades adapted to be struck by the stream issuing from said nozzle to produce its rotation, and means providing a weight which has its center of gravity eccentric to the axis of rotation of the fan and adapted to be rotated thereby so as to produce rotation of said distributing head and structure carried thereby relatively to the standard.

it sprinkler comprising a standard, a hollow distributing' head rotatably mounted thereon, means providing a nozzle upon the distributing head adapted to discharge a stream radially outwardly from the center ot rotation ot said head, an arm mounted upon the nozzle and arranged at an angle thereto, a tan rotatably mounted upon said arm about an anis which is other than horiw zontal having blades adapted to be struck by the stream issuing from said nozzle to produce its rotation, means providing a weight nfhicli has its center of gravity eccentric to the anis ot rotation ot the tan and adapted to be rotated thereby so as to produce rotation of said distributing head and structure carried thereby relatively to the standard, and means for adjusting the eccen tricity oif the center of gravity relatively to the airis of rotation oi the fan.

el. rin irrigation sprinkler comprising a standard, a distributing head rotatably mounted upon the standard, nozzles carried bV said distributing head means itor ad-` initting water to the interior oi the distributing head so as to be discharged through said nozzles, a weight rotatably mounted upon one oit the nozzles for rotation about an axis other than horizontal, said weight having its center of gravity eccentric to its axis of rotation, and means for rotating said weight so as to produce rotation of said distributing head and nozzles.

5. An irrigation sprinkler comprising a standard, a distributing head rotatably mounted upon the standard, nozzles carried by said distributing head, means for admitting water to the interior of the distributing head so as to be discharged through said nozzles, a weight rotatably mounted upon one of the nozzles for rotation about an axis other than horizontal, said weight having its center of gravity eccentric to its airis oi' rotation, and means 'for rotating said weight by the stream issuing from one oi said nozzles so as to produce rotation of said distributing head and nozzles.

6. An irrigation sprinklerl comprising a standard, a distributing head rotatably mounted upon the standard, nozzles carried by said distributing head, means for admitting water to the interior ol the distributing head so as to be discharged through said nozzles, a weight rotatably mounted upon one of the nozzles for rotation about an axis other than horizontal, said weight having its center of gravity eccentric to its axis ot rotation, means i'or rotating said weight so as to produce rotation oll said distributing head and nozzles, and means :tor adjusting the eccentricity of the center ot gravity ot the weight with respect to its airis ot rotation.

7. A sprinkler comprising a standard, a hollow distributing head rotatably mounted thereon, means providing a nozzle on the distributing head adapted to discharge a stream radially outwardly from the center of rotation ot said head, an arm carried by the head, a ian rotatably mounted upon said arm for rotation about an axis other than horizontal having blades adapted to be struck by the stream issuing from said nozzle to produce its rotation, and means providing a weight which has its center' of gavity eccentric to the axis of rotation of the fan and adapted to be rotated thereby so as to produce rotation ot the distributing head and structure carried thereby relativeA ly to the standard.

In testimony whereof I have signed my name to this specification.

MARTIN WEBER. 

